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If the solution of the equation `(x^4-9) -(x^2 + 3)| = [x^4 - 9| - |x^2 + 3|` is `(-oo,p]uu[q,oo)` then

A

`p+q=0`

B

`|p|+|q|=4`

C

`|q-p|=4`

D

`|pq|=4`

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The correct Answer is:
A
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